Summary
A low resistance vapour permeable roof tile and slate underlay for use in cold and warm roofs.
A low resistance vapour permeable roof tile and slate underlay for use in cold and warm roofs.
Color
Grey
Grey
Finish
Other
Other
Material
Composite
Composite
Shape
Rectangle
Rectangle
Length
50000 mm
50000 mm
Width
1000 mm, 1500 mm
1000 mm, 1500 mm
Specification
Standard
To BS EN 13859-1.
To BS EN 13859-1.
Third-party certification
British Board of Agrément (BBA) certificate.
British Board of Agrément (BBA) certificate.
Performance criteria
-
-
Water vapour properties
0.02 (+0.020/-0.005) sd(m).
0.02 (+0.020/-0.005) sd(m).
Fire performance
Class E.
Class E.
Tensile properties
Longitudinal/ transverse (before ageing): 350 (±40)/ 210 (±40) N/50 mm.
Longitudinal/ transverse (after ageing): 320 (±40)/ 180 (±20) N/50 mm.
Longitudinal/ transverse (before ageing): 350 (±40)/ 210 (±40) N/50 mm.
Longitudinal/ transverse (after ageing): 320 (±40)/ 180 (±20) N/50 mm.
Class (minimum)
W1.
W1.
Material
Two layer non-woven spun-bonded polypropylene, with a calcium microporous film.
Two layer non-woven spun-bonded polypropylene, with a calcium microporous film.
Form
Spun-bonded.
Spun-bonded.
Weight (minimum)
150 gsm.
150 gsm.
Reflective face
None.
None.
Additional properties
Width
1000 mm., 1500 mm.
1000 mm., 1500 mm.
Air permeability
0.04 m³/m² x h x 50 Pa.
0.04 m³/m² x h x 50 Pa.
Elongation
Longitudinal/ transverse (before ageing): 60 (±15)/ 75 (±15)%.
Longitudinal/ transverse (after ageing): 40 (±10)/ 50 (±10)%.
Longitudinal/ transverse (after ageing): 40 (±10)/ 50 (±10)%.
Longitudinal/ transverse (before ageing): 60 (±15)/ 75 (±15)%.
Longitudinal/ transverse (after ageing): 40 (±10)/ 50 (±10)%.
Longitudinal/ transverse (after ageing): 40 (±10)/ 50 (±10)%.
Integral accessories
Integral tape to tape system.
-
Sustainability data
Contains Red List materials
No
No
Material
Composite
Composite
Recyclability
Recyclable after service life
Recyclable after service life
Recycled content
0 %
0 %